JP2004134835A - Portable device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To protect a board in a housing of a portable device by making the housing as thin as possible while increasing its bending rigidity. <P>SOLUTION: The portable apparatus has the housing 30 made of lower and upper housings 31, 32. The board 33 is incorporated in the housing 30. An LF antenna 18 as an air coil antenna, an RF antenna 19, many electronic components 34, etc. are mounted on the board 33. A linear reinforcing rib 32f is formed integratedly with the rear surface of the upper housing 32 and provided in a gap between the LF and RF antennas 18, 19. Crosswise reinforcing ribs 32g, 32h are disposed in a gap between electronic components 34 inside the LF antenna 18. Consequently, a reinforcing effect of the reinforcing ribs 32g, 32h raises the bending rigidity of the housing 30 to thereby protect the board 33 and make the housing 30 thin. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a polygonal air coil antenna, a plurality of electronic components constituting an electronic circuit to which the air coil antenna is connected, a board on which these electronic components are mounted, and a housing for housing the air coil antenna and the board. And a portable device comprising:
[0002]
[Prior art]
Wireless communication is performed between the portable device worn by the vehicle user and the on-board device mounted on the vehicle, and a code signal is transmitted from the portable device in response to a request signal from the on-board device. A remote locking / unlocking device for a vehicle that permits locking / unlocking of a door when a match is confirmed as a result of checking whether or not the code signal matches a code signal stored in It is known from document 3.
[0003]
[Patent Document 1]
Japanese Patent Application Laid-Open No. 2000-45595 [Patent Document 2]
JP-A-62-38035 [Patent Document 3]
JP-A-62-38036
[Problems to be solved by the invention]
By the way, since a portable device of this kind of remote locking / unlocking device for a vehicle is often carried in a wallet or the like, it is desirable to make the thickness as thin as possible. However, since the board on which the electronic components are mounted is housed inside the housing of the portable device, if the flexural rigidity is reduced by making the housing thinner, the board inside as well as the housing is equally (same / same amount). It may bend and damage the electronic components or the soldered parts.
[0005]
SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to protect a substrate housed inside by increasing the bending rigidity of a housing of a portable device while making the housing as thin as possible.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, according to the invention described in claim 1, a polygonal air coil antenna, a plurality of electronic components constituting an electronic circuit to which the air coil antenna is connected, and these electronic components In a portable device provided with a substrate having attached thereto, and a housing for accommodating the air coil antenna and the substrate, the air coil antenna is arranged so that at least two sides thereof are along the periphery of the substrate, and forms at least a part of an electronic circuit. A portable device comprising a housing and an inner surface of the housing provided with a reinforcing rib located between the air coil antenna and any of the electronic components and extending in a length direction or a width direction of the housing. Is proposed.
[0007]
According to the above configuration, at least two sides of the polygonal air coil antenna are arranged along the periphery of the substrate and surround at least a part of the electronic circuit, and the air coil antenna and one of the air coil antennas are provided on the inner surface of the housing. Since a reinforcing rib is provided between the electronic component and extending in the length direction or the width direction of the housing, the reinforcing effect of the reinforcing rib increases the bending rigidity of the housing and protects the substrate. The increase in the thickness of the housing due to the provision of the above can be prevented. In addition, since the reinforcing rib also serves as an insulating wall that insulates the air coil antenna from any of the above electronic components, it is possible to eliminate the bobbin of the air coil antenna, thereby reducing the number of components and improving space efficiency. Become.
[0008]
Further, according to the invention described in claim 2, a polygonal air coil antenna, a plurality of electronic components constituting an electronic circuit connected to the air coil antenna, a board to which these electronic components are attached, In a portable device provided with an air coil antenna and a housing for housing a substrate, the air coil antenna is arranged so that at least two sides are along the periphery of the substrate, surrounds at least a part of the electronic circuit, and has an inner surface of the housing. Is provided with a cross-shaped reinforcing rib extending in a length direction and a width direction of the housing from a substantially central portion of the air coil antenna toward an inner peripheral portion of the air coil antenna. Is done.
[0009]
According to the above configuration, at least two sides of the polygonal air coil antenna are arranged along the periphery of the substrate, surround at least a part of the electronic circuit, and are provided at substantially the center of the air coil antenna on the inner surface of the housing. Since the cross-shaped reinforcing ribs extending in the length direction and the width direction of the housing from the front to the inner peripheral portion of the air coil antenna are provided, the bending of the housing in the length direction and the width direction by the reinforcing effect of the reinforcing ribs. The rigidity can be increased to protect the substrate. Moreover, since the cross-shaped reinforcing ribs are arranged inside the air coil antenna, they end before the edge of the board, so that when the housing is bent, the reinforcing ribs come into contact with the edge of the board and become large. It is possible to prevent a load from being applied.
[0010]
According to a third aspect of the present invention, in addition to the configuration of the second aspect, a portable device is proposed in which the substrate is supported inside the housing so as to be movable in the thickness direction. .
[0011]
According to the above configuration, since the substrate is movably supported in the thickness direction inside the housing, the amount of deformation of the substrate can be reduced compared to the amount of deformation of the housing when the housing is bent, Damage to electronic components mounted on the substrate and damage to soldered portions can be prevented.
[0012]
The LF antennas 16 and 17 and the LED 35 of the embodiment correspond to the electronic component of the present invention, the LF antenna 18 of the embodiment corresponds to the air coil antenna of the present invention, and the RF antenna 19 of the embodiment corresponds to the electronic component of the present invention. It corresponds to a component or any electronic component.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described based on examples of the present invention shown in the accompanying drawings.
[0014]
1 to 12 show an embodiment of the present invention. FIG. 1 is a diagram showing the entire configuration of a remote locking / unlocking device for a vehicle, FIG. 2 is a block diagram of a remote locking / unlocking device for a vehicle, 3 is an overall plan view of the portable transmitter / receiver, FIG. 4 is an exploded perspective view of the portable transmitter / receiver, FIG. 5 is a diagram illustrating a state where an upper housing of the portable transmitter / receiver is removed, and FIG. 7 is a plan view of the battery holder, FIG. 8 is an enlarged view of a main part of FIG. 3 (with the upper housing removed), and FIG. 9 is an enlarged sectional view of line 9-9 in FIG. 10, FIG. 10 is an enlarged sectional view taken along line 10-10 of FIG. 8, FIG. 11 is an operation explanatory view corresponding to FIG. 8, and FIG. 12 is an operational explanatory view corresponding to FIG.
[0015]
As shown in FIGS. 1 and 2, a remote locking / unlocking device for a vehicle for locking and unlocking a door of a vehicle V without using a key is intended for a vehicle user to carry in a pocket or bag. And a card-type portable transmitter / receiver 11. An LF (low frequency) receiver 13, an RF (radio frequency) transmitter 14, and an RF (radio frequency) receiver 15 are connected to the control unit 12 of the portable transmitter / receiver 11, and the LF receiver The device 13 is connected to three LF antennas 16, 17, and 18, and the RF transmitter 14 and the RF receiver 15 are connected to a common RF antenna 19.
[0016]
On the other hand, the control unit 20 provided on the vehicle V side includes a lock switch 22L and an unlock switch 23L provided on the left door 21L, a lock switch 22R and an unlock switch 23R provided on the right door 21R, and LF. The transmitter 24, the RF transmitter 25, the RF receiver 26, and the door lock actuator 27 are connected. The left and right LF antennas 28L and 28R are connected to the LF transmitter 24, and the RF transmitter A common RF antenna 29 is connected to 25 and the RF receiver 26.
[0017]
When the vehicle user wearing the portable transmitter / receiver 11 presses the unlock switch 23L of the left door 21L or the unlock switch 23R of the right door 21R, the LF antennas 28L and 28R on the vehicle V side. When the ID request signal is transmitted and the LF antennas 16 to 18 receive the ID request signal, the portable transmitter / receiver 11 transmits the ID signal stored in the control unit 12 from the RF antenna 19. The control unit 20, which has received the ID signal with the RF antenna 29 on the vehicle V side, checks whether the ID is a legitimate ID, and if the ID is a legitimate ID, transmits a random number signal x from the RF antenna 29.
[0018]
The portable transmitter / receiver 11 having received the random number signal x by the RF antenna 19 transmits a function signal f (x) calculated from the random number signal x based on the program stored in the control unit 12 from the RF antenna 19, and the function The control unit 20, which has received the signal f (x) by the RF antenna 29 on the vehicle V side, compares the function signal f (x) calculated from the random number signal x with the received function signal f (x). If they match, the door lock actuator 27 is operated to unlock the doors 21L and 21R.
[0019]
Similarly, when the vehicle user wearing the portable transmitter / receiver 11 presses the lock switch 22L of the left door 21L or the lock switch 22R of the right door 21R, the control unit 20 activates the lock actuator 27. The doors 21L and 21R are locked.
[0020]
Next, the structure of the portable transmitter / receiver 11 will be described with reference to FIGS.
[0021]
As shown in FIGS. 3 to 5, the portable transmitter / receiver 11 is a card type having a rectangular shape as a whole, and is formed to be extremely thin so as to be easily stored in a wallet or the like. Hereinafter, the four sides of the portable transmitter / receiver 11 forming a rectangle are referred to as a right side R, a left side L, an upper side U, and a lower side D (see FIG. 3).
[0022]
The housing 30 of the portable transmitter / receiver 11 is divided into a lower housing 31 and an upper housing 32 formed in a rectangular shape with a synthetic resin, and is formed along the right side R, the left side L, and the lower side D of the lower housing 31. Grooved concave portion 31a, three groove-shaped concave portions 31b, 31c, 31d formed near the upper side U, and a pin-shaped convex portion 31e formed near the center of the concave portion 31a. A rib-shaped protrusion 32a formed along the right side R, the left side L, and the lower side D of the upper housing 32; and three rib-shaped protrusions 32b, 32c, 32d formed near the upper side U, The hole-shaped concave portions 32e formed near the center of the convex portions 32a are fitted respectively, and the lower housing 31 and the upper housing 32 are fixed by welding at those fitted portions. .
[0023]
On the inner surface of the upper housing 32, a linear reinforcing rib 32f extending in the length direction (the direction of the right side R and the left side L) and a cross shape extending in the length direction and the width direction (the direction of the upper side U and the lower side D) are provided. Reinforcing ribs 32g and 32h are formed, and the recess 32e is located at the intersection of the cross-shaped reinforcing ribs 32g and 32h. The upper housing 32 is formed with one through hole 32i penetrating the front and back sides. Further, when the lower housing 31 and the upper housing 32 are connected to each other, two positioning holes 31f, 31f formed in the lower housing 31 are used to position the two. Of the positioning pins 32j, 32j.
[0024]
The RF antenna 19 is fixed to a surface of a rectangular substrate 33 accommodated in a space formed between the lower housing 31 and the upper housing 32 along a peripheral portion facing the right side R of the portable transmitter / receiver 11. You. Of the three LF antennas 16, 17, 18 fixed to the substrate 33 so that their axes are orthogonal to each other, two LF antennas 16, 17 are formed of ferrite antennas, and the other LF antenna 18 Is composed of a rectangular air coil antenna having no bobbin. The LF antenna 18 composed of an air coil antenna is fixed along the periphery of the substrate 33 facing the lower side D, the left side L, and the upper side U of the portable transmitter / receiver 11 and the RF antenna 19. Further, on the surface of the substrate 33, a large number of electronic components 34 and one LED (light emitting diode) 35 constituting an electronic circuit including a receiving circuit of the portable transmitter / receiver 11 are fixed. The portion is formed with a through hole 33a through which the pin-shaped convex portion 31e of the lower housing 31 penetrates loosely. The LED 35 faces the back side of the through hole 33a, and light emitted from the LED 35 can be visually recognized through the through hole 33a.
[0025]
Two plus terminals 36, 36 and two minus terminals 37, 37, both made of an elastic metal plate, are fixed to the periphery of the substrate 33 facing the upper side U of the portable transmitter / receiver 11. You. Each positive terminal 36 is bent by approximately 180 °, and a contact 36 a at the tip thereof extends along the peripheral edge of the substrate 33. On the other hand, each minus terminal 37 extends toward the upper side U of the portable transmitter / receiver 11, and a contact 37a is formed at the tip thereof.
[0026]
As is clear from FIGS. 3 and 6, a linear reinforcing rib 32 f provided on the upper housing 32 extends so as to block the gap α formed between the RF antenna 19 and the LF antenna 18. Accordingly, without increasing the thickness of the housing 30, the rigidity of the housing 30 is increased by the reinforcing ribs 32f to suppress bending due to external force, and damage or soldering of the electronic components 34 fixed to the substrate 33 housed therein is reduced. Damage to the attachment portion can be prevented. Moreover, since the reinforcing rib 32f also serves as an insulating wall between the RF antenna 19 and the LF antenna 18, it is not necessary to provide a bobbin on the LF antenna 18 to prevent a short circuit with the RF antenna 19, thereby reducing the number of parts and the space. Can contribute.
[0027]
Further, cross-shaped gaps β and γ in which electronic components and the like are not arranged are formed on the surface of the substrate 33, and cross-shaped reinforcing ribs 32g and 32h of the upper housing 32 are arranged in the gaps β and γ. . Due to the rigidity improving effect of the cross-shaped reinforcing ribs 32g and 32h, bending in the length direction and the width direction of the housing 30 is suppressed, and the electronic components 34 fixed to the substrate 33 housed therein are damaged or soldered. Part damage can be prevented. In particular, the cross-shaped reinforcing ribs 32g and 32h are arranged inside the rectangular LF antenna 18, and their four ends end short of the peripheral edge of the substrate 33, so that the housing 30 is bent by an external force. When this is done, it is possible to prevent the reinforcement ribs 32g and 32h from contacting the edge of the substrate 33 and applying a large load.
[0028]
In addition, in a state in which the board 33 on which the electronic circuit is mounted is housed inside the housing 30, the board 33 is not firmly fixed to the lower housing 31 and the upper housing 32, and the front, rear, left and right directions and the up and down direction (thickness direction). Has a slightly movable gap. In addition, since a gap is formed between the front ends of the reinforcing ribs 32f, 32g, and 32h in the height direction and the surface of the substrate 33 (see FIG. 6), even when the housing 30 is bent, the gap is formed. The bending load is less likely to be transmitted to the substrate 33 housed inside, and the deformation of the substrate 33 can be minimized to improve the durability.
[0029]
As shown in FIGS. 7 to 10, the battery holder 38 includes a holder body 39 made of a synthetic resin, and a metal cap 40 fixed to the holder body 39. The holder main body 39 has two support holes 39a, 39a for supporting two coin-type batteries 41, 41, and stepped battery support surfaces 39b, 39b are formed on the periphery of the support holes. You. At both ends of the holder body 39, there are provided arms 39d, 39d each having a locking claw 39c, 39c formed at the tip, and two locking hooks with which these locking claws 39c, 39c can be engaged. Portions 31g, 31g (see FIG. 8) are formed in the lower housing 31.
[0030]
Further, first and second projections 39e, 39f surrounding a part of the support holes 39a, 39a are formed inside the pair of arms 39d, 39d of the holder body 39, and the first projection 39e has a long length. The length is formed shorter than the length of the second protrusion 39f. On the other hand, the lower housing 31 is formed with a stopper 31h that cooperates with the first protrusion 39e and the second protrusion 39f (see FIG. 8).
[0031]
As is clear from FIG. 7, the battery 41 has a positive electrode 41a formed by one side surface and an outer peripheral surface, a negative electrode 41b formed by the other side surface, and a step 41c between the outer peripheral surface and the other side surface. The holder main body 39 is supported by the support holes 39a so as to be fitted to the battery support surface 39b. When the two batteries 41, 41 are held by the battery holder 38 and inserted into the housing 30, the locking claws 39c, 39c provided at the tips of the pair of elastic arms 39d, 39d of the holder body 39 are lower. The battery holder 38 is coupled to the housing 30 by engaging with the locking portions 31 g of the housing 31.
[0032]
In this state, the outer peripheries of the positive electrodes 41a of the batteries 41, 41 elastically contact the contacts 36a, 36a of the positive terminals 36, 36 provided on the substrate 33, and the negative electrodes 41b, 41b of the batteries 41, 41. The electronic circuit of the portable transmitter / receiver 11 operates when the contact 41b elastically contacts the contacts 37a, 37a of the minus terminals 37, 37 provided on the substrate 33.
[0033]
As described above, the substrate 33 is not fixed inside the housing 30 and is provided with a gap so as to be able to move slightly. However, when the battery holder 38 is coupled to the housing 30, the outer peripheral portions of the batteries 41 Abuts against the positive terminals 36, 36 of the substrate 33 and presses in the direction of arrow A in FIG. 8, the substrate 33 is urged by the resilience of the positive terminals 36, 36, so that the lower surface D side of the inner surface of the housing 30 Since the pressing is performed, it is possible to prevent rattling of the substrate 33 and generation of abnormal noise.
[0034]
As described above, by using the elasticity of the positive terminals 36, 36, a special fixing member for fixing the board 33 to the housing 30 and the number of assembling steps for assembling the board 33 to the housing 30 can be reduced. In addition, it is possible to make it difficult for bending and impact applied to the housing 30 to be transmitted to the substrate 33. In particular, since the substrate 33 is not only movable in the front, rear, left and right directions with respect to the housing 30 but also movable in the thickness direction, when the housing 30 is bent, the amount of deformation of the substrate 33 The amount of deformation can be reduced, and damage to the electronic components 34 and the like attached to the substrate 33 and damage to soldered portions can be prevented.
[0035]
When the batteries 41, 41 are mounted upside down in the support holes 39a, 39a of the holder main body 39 of the battery holder 38, the step portions 41c, 41c of the batteries 41, 41 coincide with the battery support surfaces 39b, 39b of the holder main body 39. However, the negative poles 41b, 41b of the batteries 41, 41 protrude from the holder body 39 in the thickness direction, and it becomes difficult to insert the battery holder 38 into the housing 30, so that the batteries 41, 41 are mounted upside down. It becomes easy to notice that there is.
[0036]
If the battery holder 38 is forcibly inserted into the housing 30 without noticing that the batteries 41 and 41 are mounted upside down, as shown in FIG. It can be connected to the housing 30 for the time being. However, the positive electrodes 41a, 41a on one side of the batteries 41, 41 are in contact with the contacts 37a, 37a of the minus terminals 37, 37 of the substrate 33, and the positive electrodes 41a, 41a on the outer periphery of the batteries 41, 41 are connected to the substrate 33. In order to make contact with the contacts 36a, 36a of the plus terminals 36, 36, that is, in order that both the plus terminals 36, 36 and the minus terminals 37, 37 of the substrate 33 contact the plus poles 41a, 41a of the batteries 41, 41, It is possible to prevent a reverse current from flowing through the electronic circuit to cause damage.
[0037]
Further, even if the batteries 41 are correctly mounted on the battery holder 38, if the battery holder 38 is mounted upside down on the housing 30, power cannot be supplied to the electronic circuit. As is clear from FIG. 8, if there is no error in the front and back of the battery holder 38, the shorter first protrusion 39 e of the holder main body 39 does not interfere with the stopper 31 h of the lower housing 31. 30. On the other hand, as is apparent from FIG. 11, when the battery holder 38 is inserted upside down into the housing 30, the longer second protrusion 39 f of the holder main body 39 interferes with the stopper 31 h of the lower housing 31. As a result, the battery holder 38 cannot be completely inserted into the housing 30 (see the point p in FIG. 11), so that erroneous assembly of the battery holder 38 can be reliably prevented.
[0038]
In order to remove the battery holder 38 from the housing 30, the pair of arms 39d, 39d of the holder main body 39 are pushed inward with two fingers to remove the locking claws 39c, 39c from the locking portions 31g, 31g. Thereafter, the battery holder 38 may be pulled out of the housing 30 while holding the arms 39d and 39d.
[0039]
The embodiments of the present invention have been described above. However, various design changes can be made in the present invention without departing from the gist thereof.
[0040]
For example, in the embodiment, the RF antenna 19 is disposed outside the LF antenna 18 composed of an air coil antenna. However, the RF antenna 19 may be disposed inside the LF antenna 18 so that all the electronic components are surrounded by the LF antenna 18. good.
[0041]
In the embodiment, the linear reinforcing rib 32f extends in the longitudinal direction of the housing 30, but may extend in the width direction of the housing 30.
[0042]
The use of the portable device of the present invention is not limited to a vehicle remote locking / unlocking device for locking and unlocking the doors 21L and 21R of the vehicle V.
[0043]
【The invention's effect】
As described above, according to the first aspect of the invention, at least two sides of the polygonal air coil antenna are arranged along the periphery of the substrate, surround at least a part of the electronic circuit, and have a housing. Is provided between the air coil antenna and any of the electronic components on the inner surface of the housing, and a reinforcing rib extending in the longitudinal direction or the width direction of the housing is provided. It is possible to prevent the housing from increasing in thickness due to the provision of the reinforcing ribs while protecting the substrate by increasing the height. In addition, since the reinforcing rib also serves as an insulating wall that insulates the air coil antenna from any of the above electronic components, it is possible to eliminate the bobbin of the air coil antenna, thereby reducing the number of components and improving space efficiency. Become.
[0044]
According to the invention described in claim 2, at least two sides of the polygonal air coil antenna are arranged along the periphery of the substrate, surround at least a part of the electronic circuit, and are provided on the inner surface of the housing. Cross-shaped reinforcing ribs are provided extending from the substantially central portion of the air coil antenna toward the inner peripheral portion of the air coil antenna in the length direction and the width direction of the housing. The bending rigidity in the width direction and the width direction can be increased to protect the substrate. Moreover, since the cross-shaped reinforcing ribs are arranged inside the air coil antenna, they end before the edge of the board, so that when the housing is bent, the reinforcing ribs come into contact with the edge of the board and become large. It is possible to prevent a load from being applied.
[0045]
According to the third aspect of the present invention, since the substrate is movably supported in the thickness direction inside the housing, the amount of deformation of the substrate is smaller than the amount of deformation of the housing when the housing is bent. Can be reduced, and damage to the electronic components mounted on the substrate and damage to the soldered portion can be prevented.
[Brief description of the drawings]
FIG. 1 is a diagram showing an overall configuration of a remote locking / unlocking device for a vehicle. FIG. 2 is a block diagram of a remote locking / unlocking device for a vehicle. FIG. 3 is an overall plan view of a portable transmitting / receiving device. FIG. 5 is an exploded perspective view of the portable transmitter / receiver. FIG. 5 is a view showing a state where an upper housing of the portable transmitter / receiver is removed. FIG. 6 is an enlarged sectional view taken along line 6-6 in FIG. 3 FIG. FIG. 8 is an enlarged view of a main part of FIG. 3 (with the upper housing removed).
9 is an enlarged sectional view taken along line 9-9 of FIG. 8; FIG. 10 is an enlarged sectional view taken along line 10-10 of FIG. 8; FIG. Explanation diagram [Explanation of reference numerals]
16 LF antenna (electronic parts)
17 LF antenna (electronic parts)
18 LF antenna (air coil antenna)
19 RF antenna (electronic parts)
30 housing 32f reinforcing rib 32g reinforcing rib 32h reinforcing rib 33 substrate 34 electronic component 35 LED (electronic component)

Claims (3)

A polygonal air coil antenna (18), a plurality of electronic components (16, 17, 19, 34, 35) constituting an electronic circuit to which the air coil antenna (18) is connected, and these electronic components (16, 17, 19, 34, 35), a portable device including a board (33) to which an air coil antenna (18) and a housing (30) for housing the board (33) are attached.
The air coil antenna (18) is arranged so that at least two sides extend along the periphery of the substrate (33) and surrounds at least a part of the electronic circuit. The air coil antenna (18) is provided on the inner surface of the housing (30). A portable device characterized in that a reinforcing rib (32f) extending in the length direction or the width direction of the housing (30) is provided between the housing (30) and any one of the electronic components (19). A polygonal air coil antenna (18), a plurality of electronic components (16, 17, 19, 34, 35) constituting an electronic circuit to which the air coil antenna (18) is connected, and these electronic components (16, 17, 19, 34, 35), a portable device including a board (33) to which an air coil antenna (18) and a housing (30) for housing the board (33) are attached.
The air coil antenna (18) is arranged so that at least two sides extend along the periphery of the substrate (33) and surrounds at least a part of the electronic circuit. The air coil antenna (18) is provided on the inner surface of the housing (30). And a cross-shaped reinforcing rib (32g, 32h) extending in a length direction and a width direction of the housing (30) from a substantially central portion toward an inner peripheral portion of the air coil antenna (18). And portable devices. The portable device according to claim 2, wherein the substrate (33) is supported movably in the thickness direction inside the housing (30).

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